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http://hdl.handle.net/10397/92433
Title: | Effect of reduced pressure on burning dynamics of fire whirls | Authors: | Sun, P Zhang, X Ding, C Huang, X |
Issue Date: | Oct-2021 | Source: | Fire safety journal, Oct. 2021, v. 125, 103419 | Abstract: | The fire whirl is an intensification of combustion, but its pressure effect is still unknown. In this study, small-scale fire whirls (<10 kW) were generated by square enclosures with slits inside a large low-pressure chamber. As the pressure decreases, the fire whirl becomes bluer, and the burning rate decreases linearly at a rate five times faster than the pool fire. Thus, the hazard of fire whirl drops significantly at the reduced pressure. Unlike the flame height of pool fire increasing with pressure, the flame height of fire whirl is almost insensitive to the pressure due to the competition between burning rate and whirling airflow. | Keywords: | Blue flame Burning rate Fire tornado Flame height Reduced pressure |
Publisher: | Elsevier | Journal: | Fire safety journal | ISSN: | 0379-7112 | DOI: | 10.1016/j.firesaf.2021.103419 | Rights: | © 2021 Elsevier Ltd. All rights reserved. © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Sun, P., et al. (2021). "Effect of reduced pressure on burning dynamics of fire whirls." Fire Safety Journal 125: 103419 is available at https://dx.doi.org/10.1016/j.firesaf.2021.103419. |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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Sun_Effect_Reduced_Pressure.pdf | Pre-Published version | 1.2 MB | Adobe PDF | View/Open |
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